It depends what you are looking for really. The world is so huge and there are so many different things to do, you cannot really experience the game in a day or two, it's a long term investment. Gone are the days where the starter zones are jam packed and you are fighting over quest mobs. More things will happen as you level up and get to zones where things happen.
XBox Live, Origin, PSN and Games for Windows Live Gamertag: teamHAM